David Pingree @davidpingree
Yamaha planning to release an all-new 2013 1/2 model 450 in spring of next year? Heard it from a couple people now. #limitededition
ANYONE got any more info on this?
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They dropped the 5 valve head on the YZ450 starting with the 2010 backwards engine model.unknownmxr wrote: When are they going to drop the 5 valve head?. None of their road bikes have it.
Note: I just bought a yz250f. Happy 50th to me!
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Sounds legit.smrscott wrote: My plan worked - You tell a few people about rumored new technology and BOOM - it spreads across the web like wild fire.
OK, here is the skinny, the 2014 YZ450 is going to have a forward cylinder, twin exhaust ports with dual headers and twin mufflers. The frame is going to by a hybrid alloy/carbon matrix composite combo. The bike is said to put out 60hp at the rear wheel and will be available in several colors, old school Euro White/Red, 70s US Yellow/black and Blue. Suspension is said to be an air/oil (springless) three chamber system front and rear with speed-sensitive computer-controlled valving via a small micro computer powered by the ignition. The shock is a floating linkless system that no longer needs a mechanical progressive link since the computer will control all aspects of valving and speed control. It will be the lightest 450 or some say it might be a between 375-449cc, they are testing several different versions. Wet weight with no fuel on the test mules is around right around 219lbs. Fuel injection is direct port with two injectors directing fuel vapor micro-mist directly into the combustion chamber. The computer also has programmed in traction control with 10 different settings on the fly. If the bike comes out mid-year or early-release 2014, the public will be blown away by its space-age looking design. The bike is so advanced it nearly rides itself. 2013 and a half - heck, if a bike comes out in May, it is only 3-months sooner than standard releases. Sorry, that is all of the information I could get from the cocktail napkin I dug out of the trash can near a bar by Yamaha. I went down to my dealer and I put my name on the list 30 minutes ago- "he said what list" then I said START ONE FOR F's SAKE, I want to be first on it.
Interesting observationmattmatt300 wrote: Has nobody else figured out what this really means? Villopoto edition yz that will release mid year a la ktm/dungey. This most likely means RV is signed and sealed to JGR.
Please appreciate that I call a spade a spade. I'm a straight talker with no connections and no agenda. I will happily apologize if I'm wrong and If I am right I will not gloat. I love the sport and that's all there is to it.
maybe your speed overcomes it's inadequacies.weasel49 wrote: I just picked up a leftover 11 yz450f and I really don't understand why the bike is hated. Besides the noise of the airbox I think it's pretty good. If JS won in 10, 11 or 12 on it would everyone still say it's a stink bug ?
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Exactly ! The Stewart situation has alot to do with the current bashing of the bike !weasel49 wrote: I just picked up a leftover 11 yz450f and I really don't understand why the bike is hated. Besides the noise of the airbox I think it's pretty good. If JS won in 10, 11 or 12 on it would everyone still say it's a stink bug ?
I would bet ping is right on this , It just makes sence , He is right more than wrong ..837wills wrote: From Ping via twitter
David Pingree @davidpingree
Yamaha planning to release an all-new 2013 1/2 model 450 in spring of next year? Heard it from a couple people now. #limitededition
ANYONE got any more info on this?
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Smoking Kills.smrscott wrote: My plan worked - You tell a few people about rumored new technology and BOOM - it spreads across the web like wild fire.
OK, here is the skinny, the 2014 YZ450 is going to have a forward cylinder, twin exhaust ports with dual headers and twin mufflers. The frame is going to by a hybrid alloy/carbon matrix composite combo. The bike is said to put out 60hp at the rear wheel and will be available in several colors, old school Euro White/Red, 70s US Yellow/black and Blue. Suspension is said to be an air/oil (springless) three chamber system front and rear with speed-sensitive computer-controlled valving via a small micro computer powered by the ignition. The shock is a floating linkless system that no longer needs a mechanical progressive link since the computer will control all aspects of valving and speed control. It will be the lightest 450 or some say it might be a between 375-449cc, they are testing several different versions. Wet weight with no fuel on the test mules is around right around 219lbs. Fuel injection is direct port with two injectors directing fuel vapor micro-mist directly into the combustion chamber. The computer also has programmed in traction control with 10 different settings on the fly. If the bike comes out mid-year or early-release 2014, the public will be blown away by its space-age looking design. The bike is so advanced it nearly rides itself. 2013 and a half - heck, if a bike comes out in May, it is only 3-months sooner than standard releases. Sorry, that is all of the information I could get from the cocktail napkin I dug out of the trash can near a bar by Yamaha. I went down to my dealer and I put my name on the list 30 minutes ago- "he said what list" then I said START ONE FOR F's SAKE, I want to be first on it.
Veteran World champ Mats Nilsson racing one long time now. He's been racing Yamas 10 year for sure. He rather change to 250 class then ride the "new" 450. Solution....building a 250/450 with "old" frame. He is maybe Swedens best testrider and refuse to race it as much as Stewart.dboivin wrote: you watch, it will be a WR modified for MX. standard 450 stuffed into their 250f frame. That new WR is getting solid reviews isn't it?
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Or in my case, the lack of speed fails to bring out its inadequacies. lolweasel49 wrote: I just picked up a leftover 11 yz450f and I really don't understand why the bike is hated. Besides the noise of the airbox I think it's pretty good. If JS won in 10, 11 or 12 on it would everyone still say it's a stink bug ?
machine wrote: maybe your speed overcomes it's inadequacies.
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x2motomike137 wrote: I love that they have gotten this bad rep... I bought a super low hour used 2011 off a guy with a Yosh pipe for half what a new one would cost! I admit I am a Yamaha guy from way back but honestly there is nothing wrong with these bikes. The funniest part of all this conjecture is that the "backwards engine" is a issue... I had one guy try to tell me that the motor actually runs backwards...lol. I think if anything they may need to bring the motor back forward a skosh in the frame (which many of us accomplish with the relocation kits) and tune on the frame a little. Having the pipe out of harms way and the filter in a location that lends itself to staying cleaner are both plusses in my book. I love mine!
Just curious what you meant by the 5th valve design comment? Is the 5th valve a bad design in your opinion? I have an 08 and they had the 5 valve design. I can't say that I hit the rev limiter very often but It's run 4 and a half years now without any issue. Starts like a champ and power is still great. It is all bone stock.unknownmxr wrote: When are they going to drop the 5 valve head?. None of their road bikes have it.
Note: I just bought a yz250f. Happy 50th to me!DownSouth wrote: They dropped the 5 valve head on the YZ450 starting with the 2010 backwards engine model.
The WR still uses the older style 5 valve engine.
Actually the 5 valve head was a great design and contributed to the longevity of the valves becauses they were smaller and used lighter springs. I think that they found on the larger motors though that the 5 valve layout limits/complicates options from a head mod and motor building stand point (don't flame me for my basic knowledge or lack thereof...lol).IWreckALot wrote: Just curious what you meant by the 5th valve design comment? Is the 5th valve a bad design in your opinion? I have an 08 and they had the 5 valve design. I can't say that I hit the rev limiter very often but It's run 4 and a half years now without any issue. Starts like a champ and power is still great. It is all bone stock.